On Wednesday, May 01, 2013 11:28:09 AM Alex K. wrote: > Hi, > > after playing around in the past I also got to following conclusion: > ... > 3. On Win 7 64 Bit use the Patch from Graeme Gill Interestingly, I am running Win 7 64-bit with an AMD card, and I did not have to use the patch. What exactly does the patch do? But turning off that setting in Catalyst did help. Prior to that, I could not get an accurate matrix+curves profile and had to use a LUT profile which is troublesome. That setting also clipped my gamut somewhat, but it was still much wider than sRGB (though turning it off made it wider still). -- Tom Schumm http://www.fwiffo.com/